title: New design of hip prosthesis using carbon fibre reinforced composite.
abstract: We present a new design for a hip prosthesis using polyethylene-hydroxyapatite, a composite material with layered stiffness and good bone compatibility. In order to overcome the low stiffness of the matrix, carbon fibre reinforcement is suggested. This new collarless prosthesis was designed to give maximum stiffness at the core and lower stiffness at the bone-implant interface. For this design a 2D finite element analysis was undertaken; its results were compared with those for a titanium alloy prosthesis. The effect of the variation in the collar stiffness was also analysed.
authors.affiliation: Queen Mary College, University of London, Department of Mechanical Engineering, UK.
authors.forename: R
authors.initials: R
authors.lastname: Shirandami
authors.forename: I I
authors.initials: II
authors.lastname: Esat
mesh_terms: D002244:Carbon; D000077482:Carbon Fiber; D004548:Elasticity; D005269:Femur / Q000502:physiology / Q000601:surgery; D006622:Hip Prosthesis; D006882:Hydroxyapatites; D008422:Materials Testing; D008962:Models, Theoretical; D011095:Polyethylenes; D011474:Prosthesis Design; D013314:Stress, Mechanical; D014025:Titanium
chemical_list: D000077482:Carbon Fiber; D006882:Hydroxyapatites; D011095:Polyethylenes; D002244:Carbon; D014025:Titanium